Annotation of loncom/auth/loncacc.pm, revision 1.18
1.1 albertel 1: # The LearningOnline Network
2: # Cookie Based Access Handler for Construction Area
3: # (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer)
1.17 www 4: #
1.18 ! harris41 5: # $Id: loncacc.pm,v 1.17 2001/11/29 19:12:44 www Exp $
1.17 www 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
1.18 ! harris41 29: # YEAR=2000
1.4 www 30: # 6/15,16/11,22/11,
1.18 ! harris41 31: # YEAR=2001
1.15 www 32: # 01/06,01/11,6/1,9/25,9/28,11/22,12/25,12/26,
1.16 www 33: # 01/06/01,05/04,05/05,05/09 Gerd Kortemeyer
1.18 ! harris41 34: # 12/21 Scott Harrison
! 35: #
! 36: ###
1.1 albertel 37:
38: package Apache::loncacc;
39:
40: use strict;
1.8 www 41: use Apache::Constants qw(:common :http :methods);
1.7 www 42: use Apache::File;
1.1 albertel 43: use CGI::Cookie();
1.14 www 44: use Fcntl qw(:flock);
1.1 albertel 45:
1.15 www 46: sub constructaccess {
47: my ($url,$ownerdomain)=@_;
1.16 www 48: my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)(\w+)/);
1.15 www 49: unless (($ownername) && ($ownerdomain)) { return ''; }
50:
51: if (($ownername eq $ENV{'user.name'}) &&
52: ($ownerdomain eq $ENV{'user.domain'})) {
53: return ($ownername,$ownerdomain);
54: }
55:
56: my $capriv='user.priv.ca./'.
57: $ownerdomain.'/'.$ownername.'./'.
58: $ownerdomain.'/'.$ownername;
1.18 ! harris41 59: foreach (keys %ENV) {
1.15 www 60: if ($_ eq $capriv) {
61: return ($ownername,$ownerdomain);
62: }
1.18 ! harris41 63: }
1.15 www 64:
65: return '';
66: }
67:
1.1 albertel 68: sub handler {
69: my $r = shift;
70: my $requrl=$r->uri;
71: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
72: my $lonid=$cookies{'lonID'};
73: my $cookie;
74: if ($lonid) {
75: my $handle=$lonid->value;
76: $handle=~s/\W//g;
77: my $lonidsdir=$r->dir_config('lonIDsDir');
78: if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
1.2 www 79: my @profile;
80: {
81: my $idf=Apache::File->new("$lonidsdir/$handle.id");
1.14 www 82: flock($idf,LOCK_SH);
1.2 www 83: @profile=<$idf>;
1.14 www 84: $idf->close();
1.2 www 85: }
86: my $envi;
87: for ($envi=0;$envi<=$#profile;$envi++) {
88: chomp($profile[$envi]);
89: my ($envname,$envvalue)=split(/=/,$profile[$envi]);
1.9 www 90: $ENV{$envname} = $envvalue;
1.2 www 91: }
1.9 www 92: $ENV{'user.environment'} = "$lonidsdir/$handle.id";
93: $ENV{'request.state'} = "construct";
94: $ENV{'request.filename'} = $r->filename;
1.15 www 95:
96: unless (&constructaccess($requrl,$r->dir_config('lonDefDomain'))) {
97: $r->log_reason("Unauthorized $requrl", $r->filename);
98: return HTTP_NOT_ACCEPTABLE;
99: }
1.9 www 100:
101: # -------------------------------------------------------- Load POST parameters
102:
103:
1.12 www 104: my $buffer;
1.8 www 105:
1.12 www 106: $r->read($buffer,$r->header_in('Content-length'));
107:
108: unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
1.5 www 109: my @pairs=split(/&/,$buffer);
1.9 www 110: my $pair;
1.5 www 111: foreach $pair (@pairs) {
1.9 www 112: my ($name,$value) = split(/=/,$pair);
1.6 www 113: $value =~ tr/+/ /;
114: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.10 www 115: $name =~ tr/+/ /;
116: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.9 www 117: $ENV{"form.$name"}=$value;
1.5 www 118: }
1.12 www 119: } else {
120: my $contentsep=$1;
121: my @lines = split (/\n/,$buffer);
122: my $name='';
123: my $value='';
124: my $fname='';
125: my $fmime='';
126: my $i;
127: for ($i=0;$i<=$#lines;$i++) {
128: if ($lines[$i]=~/^$contentsep/) {
129: if ($name) {
130: chomp($value);
131: if ($fname) {
132: $ENV{"form.$name.filename"}=$fname;
133: $ENV{"form.$name.mimetype"}=$fmime;
1.13 www 134: } else {
135: $value=~s/\s+$//s;
1.12 www 136: }
1.13 www 137: $ENV{"form.$name"}=$value;
1.12 www 138: }
139: if ($i<$#lines) {
140: $i++;
141: $lines[$i]=~
142: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
143: $name=$1;
144: $value='';
145: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
146: $fname=$1;
147: if
148: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
149: $fmime=$1;
150: $i++;
151: } else {
152: $fmime='';
153: }
154: } else {
155: $fname='';
156: $fmime='';
157: }
158: $i++;
159: }
160: } else {
161: $value.=$lines[$i]."\n";
162: }
163: }
164: }
1.8 www 165: $r->method_number(M_GET);
166: $r->method('GET');
167: $r->headers_in->unset('Content-length');
168:
1.1 albertel 169: return OK;
170: } else {
171: $r->log_reason("Cookie $handle not valid", $r->filename)
172: };
173: }
1.6 www 174:
175: # ----------------------------------------------- Store where they wanted to go
176:
177: $ENV{'request.firsturl'}=$requrl;
1.1 albertel 178: return FORBIDDEN;
179: }
180:
181: 1;
182: __END__
183:
1.18 ! harris41 184: =head1 NAME
! 185:
! 186: Apache::lonacc - Cookie Based Access Handler for Construction Area
! 187:
! 188: =head1 SYNOPSIS
! 189:
! 190: Invoked (for various locations) by /etc/httpd/conf/srm.conf:
! 191:
! 192: PerlAccessHandler Apache::loncacc
! 193:
! 194: =head1 INTRODUCTION
! 195:
! 196: This module enables cookie based authentication for construction area
! 197: and is used to control access for three (essentially equivalent) URIs.
! 198:
! 199: <LocationMatch "^/priv.*">
! 200: <LocationMatch "^/\~.*">
! 201: <LocationMatch "^/\~.*/$">
! 202:
! 203: Whenever the client sends the cookie back to the server,
! 204: if the cookie is missing or invalid, the user is re-challenged
! 205: for login information.
! 206:
! 207: This is part of the LearningOnline Network with CAPA project
! 208: described at http://www.lon-capa.org.
! 209:
! 210: =head1 HANDLER SUBROUTINE
! 211:
! 212: This routine is called by Apache and mod_perl.
! 213:
! 214: =over 4
! 215:
! 216: =item *
! 217:
! 218: load POST parameters
! 219:
! 220: =item *
! 221:
! 222: store where they wanted to go (first url entered)
! 223:
! 224: =back
! 225:
! 226: =head1 OTHERSUBROUTINES
! 227:
! 228: =over 4
! 229:
! 230: =item *
! 231:
! 232: constructaccess($url,$ownerdomain) : See if the owner domain and name
! 233: in the URL match those in the expected environment. If so, return
! 234: two element list ($ownername,$ownerdomain). Else, return null string.
! 235:
! 236: =back
! 237:
! 238: =cut
1.1 albertel 239:
240:
241:
242:
243:
244:
245:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to loncacc.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / auth